MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='c3543cac25e66615965cae0cca581fee',`time`=1711714890,`ip`=X'2cdf2a78',`location`='/newreply.php?tid=241&replyto=1438',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0